Home / 1,514.34-2,271.44-418.76

Finding the Fourth Proportional to 1,514.34, 2,271.44 and 418.76

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Solution

The fourth proportional to 1,514.34, 2,271.44 and 418.76 is: 628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.34 : 2,271.44 = 418.76 : x
  2. Step 2: Convert to fraction form
    1,514.34/2,271.44 = 418.76/x
  3. Step 3: Cross multiply
    1,514.34x = 2,271.44 × 418.76
  4. Step 4: Simplify right side
    1,514.34x = 951,188.21
  5. Step 5: Solve for x
    x = 951,188.21/1,514.34
  6. Step 6: Final answer
    x = 628.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.